Abstract: An electronic board includes: a board including an upper surface ground on an upper surface; at least one first land formed on the upper surface and connected to a first signal line; at least one second land formed on the upper surface and connected to a second signal line; at least one third land disposed on the upper surface between the first land and the second land and connected to the upper surface ground; and at least one fourth land disposed on the upper surface on a side opposite to the third land and connected to the upper surface ground, the first land being interposed between the third land and the fourth land.

Abstract: An imaging device includes a calculator, a white balance corrector, and a white balance corrector. The calculator calculates a white balance gain and an inverse gain on the basis of a first image. The white balance gain is used for correcting white balance. The inverse gain is a reciprocal number of the white balance gain. The white balance corrector corrects white balance of a captured image on the basis of the white balance gain. The white balance corrector generates a first image and outputs the generated first image to the calculator. The first image is generated by performing inverse gain correction in which the captured image whose white balance has been corrected is multiplied by the inverse gain.

Abstract: An electronic board includes: a board including an upper surface ground on an upper surface; at least one first land formed on the upper surface and connected to a first signal line; at least one second land formed on the upper surface and connected to a second signal line; at least one third land disposed on the upper surface between the first land and the second land and connected to the upper surface ground; and at least one fourth land disposed on the upper surface on a side opposite to the third land and connected to the upper surface ground, the first land being interposed between the third land and the fourth land.